package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import com.sky.utils.BcryptUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.crypto.bcrypt.BCrypt;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;

import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;


    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
//        BcryptUtil.matches(password, employee.getPassword());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public Boolean AddEmploy(EmployeeDTO employeeDTO ,Long userId) {


        Employee employee = new Employee();
        //复制对象,将dto对象中的属性复制到employee对象中
        BeanUtils.copyProperties(employeeDTO, employee);
        employee.setStatus(StatusConstant.ENABLE);
        employee.setPassword(BcryptUtil.encode(PasswordConstant.DEFAULT_PASSWORD));
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        //从上下文获取登录对象的id
        employee.setCreateUser(userId);
        employee.setUpdateUser(userId);

        return employeeMapper.insert(employee)>0;
    }


    @Override
    public PageResult GetEmployList(EmployeePageQueryDTO employeePageQueryDTO) {
        String name = employeePageQueryDTO.getName();
        int page = employeePageQueryDTO.getPage();
        int size = employeePageQueryDTO.getPageSize();
        PageHelper.startPage(page, size);
        //分页查询
        Page<Employee> pagelist= employeeMapper.selectPage(employeePageQueryDTO);
        //封装分页结果total是总记录数
        long total = pagelist.getTotal();
        List<Employee> list = pagelist.getResult();

        return new PageResult(total,list);
    }

    @Override
    public boolean EmployStatus(Integer status, Long id) {
        //为了保证mapper的兼容性
        Employee employee =Employee.builder()
                .id(id)
                .status(status)
                .build();
        int row = employeeMapper.update(employee);


        return row > 0;
    }

    @Override
    public Employee GetEmployInfo(Long id) {
        return employeeMapper.getById(id);
    }



    @Override
    public boolean UpdateEmploy(EmployeeDTO employeeDTO, Long LoginID) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
        employee.setUpdateUser(LoginID);

        return employeeMapper.update(employee)>0;
    }



}
